Seasonal changes of freshwater ammonia - oxidizing archaeal assemblages and 1 nitrogen species in oligotrophic alpine lakes 2 3 Running title : Seasonal changes in alpine freshwater AOA 4 5

نویسندگان

  • Jean-Christophe Auguet
  • Natalya Nomokonova
  • Lluis Camarero
  • Emilio O. Casamayor
چکیده

1 Limnological Observatory of the Pyrenees (LOOP)-Dep of Continental Ecology. Centro de 8 Estudios Avanzados de Blanes, CEAB-CSIC. Accés Cala Sant Francesc, 14. 17300 Blanes, 9 Girona, Spain 10 11 12 *Corresponding author. Jean-Christophe Auguet. CEAB-CSIC, Accés Cala St Francesc, 14. E13 17300. Blanes (SPAIN). Phone: +34 972 336 101, Fax: +34 972 337 806. 14 E-mail: jcauguet@ceab.csic.es 15 16 17 Journal section: Microbial ecology 18 Copyright © 2011, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved. Appl. Environ. Microbiol. doi:10.1128/AEM.01213-10 AEM Accepts, published online ahead of print on 14 January 2011

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

High Abundances of Potentially Active Ammonia-Oxidizing Bacteria and Archaea in Oligotrophic, High-Altitude Lakes of the Sierra Nevada, California, USA

Nitrification plays a central role in the nitrogen cycle by determining the oxidation state of nitrogen and its subsequent bioavailability and cycling. However, relatively little is known about the underlying ecology of the microbial communities that carry out nitrification in freshwater ecosystems--and particularly within high-altitude oligotrophic lakes, where nitrogen is frequently a limitin...

متن کامل

Effect of lake trophic status and rooted macrophytes on community composition and abundance of ammonia-oxidizing prokaryotes in freshwater sediments.

Communities of ammonia-oxidizing archaea (AOA) and bacteria (AOB) in freshwater sediments and those in association with the root system of the macrophyte species Littorella uniflora, Juncus bulbosus, and Myriophyllum alterniflorum were compared for seven oligotrophic to mesotrophic softwater lakes and acidic heathland pools. Archaeal and bacterial ammonia monooxygenase alpha-subunit (amoA) gene...

متن کامل

Temporal and spatial distributions of ammonia-oxidizing archaea and bacteria and their ratio as an indicator of oligotrophic conditions in natural wetlands.

Ammonia-oxidizing organisms play an important role in wetland water purification and nitrogen cycling. We determined soil nitrification rates and investigated the seasonal and spatial distributions of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in three freshwater wetlands by using specific primers targeting the amoA genes of AOA and AOB and real-time quantitative polym...

متن کامل

Seasonal and vertical distribution of putative ammonia-oxidizing thaumarchaeotal populations in an oligotrophic lake

The discovery of Archaea carrying an amoA gene coding for the A-subunit of ammonia monooxygenase gave a boost to studies aimed at detecting this gene under diverse conditions. Despite numerous studies describing the archaeal amoA gene abundance and richness in different habitats, the understanding of the freshwater ecology of potentially 5 archaeal ammonia-oxidizers, recently positioned in the ...

متن کامل

Abundance and Diversity of Ammonia-Oxidizing Archaea and Bacteria in Sediments of Trophic End Members of the Laurentian Great Lakes, Erie and Superior

Ammonia oxidation is the first step of nitrification carried out by ammonia-oxidizing Archaea (AOA) and Bacteria (AOB). Lake Superior and Erie are part of the Great Lakes system differing in trophic status with Lake Superior being oligotrophic and Lake Erie meso- to eutrophic. Sediment samples were collected from both lakes and used to characterize abundance and diversity of AOA and AOB based o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011